try {
  parseFeedbackInfo({"token":"U2FsdGVkX1+J5PdPxaRzZG+hQ8sjZvUYsM+qkcQplxmssEa+DMiitx9YSFo9OkSHxrl/fOU3meo=","useful":3});
}catch(e){
  //alert(e);
}